﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Example05_sharp
{
    class Program
    {
        static void Main(string[] args)
        {
           Rectangle rect=new Rectangle(8,9);
           Console.WriteLine("recta:{0}",rect.area());
           return;

        }
    }
}
